[PATCH 1/7] mm/khugepaged: remove unneeded shmem_huge_enabled() check

From: Miaohe Lin <linmiaohe@huawei.com>
To: <akpm@linux-foundation.org>
Cc: <aarcange@redhat.com>, <willy@infradead.org>, <vbabka@suse.cz>,
	<dhowells@redhat.com>, <neilb@suse.de>, <apopple@nvidia.com>,
	<david@redhat.com>, <surenb@google.com>, <peterx@redhat.com>,
	<linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>,
	<linmiaohe@huawei.com>
Subject: [PATCH 1/7] mm/khugepaged: remove unneeded shmem_huge_enabled() check
Date: Sat, 11 Jun 2022 16:47:25 +0800	[thread overview]
Message-ID: <20220611084731.55155-2-linmiaohe@huawei.com> (raw)
In-Reply-To: <20220611084731.55155-1-linmiaohe@huawei.com>

If we reach here, hugepage_vma_check() has already made sure that hugepage
is enabled for shmem. Remove this duplicated check.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
---
 mm/khugepaged.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index 476d79360101..73570dfffcec 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -2153,8 +2153,6 @@ static unsigned int khugepaged_scan_mm_slot(unsigned int pages,
 		if (khugepaged_scan.address < hstart)
 			khugepaged_scan.address = hstart;
 		VM_BUG_ON(khugepaged_scan.address & ~HPAGE_PMD_MASK);
-		if (shmem_file(vma->vm_file) && !shmem_huge_enabled(vma))
-			goto skip;
 
 		while (khugepaged_scan.address < hend) {
 			int ret;
-- 
2.23.0

